Trail Running calendar near Builth Wells 2025-2026

The Beast of Bryn 2025, organized by the Bryn Residents Action Group (BRAG), is a challenging running event set in the scenic Afan Forest Park. Participants can choose between two distances: approximately 6.5 miles (10.5 km) or 10.5 miles (17 km), with significant elevation gains. The event, which b..

The Two Tunnels Races, scheduled for August 17, 2025, in Bath, UK, offer a unique running experience featuring the longest underground sections for each race distance in the UK. Participants can choose from various events, including an ultra marathon, marathon, half marathons, 10km, 5km, and family-..

The Summer Green Man Ultra (GMU) features two challenging distances: 30 miles and 45 miles, both set on the scenic Community Forest Path around Bristol. Participants can expect a clockwise route with multiple checkpoints offering food and hydration. All finishers receive a bespoke medal and a techni..

The Mendip Marauder is an exciting ultra-running event featuring two challenging distances: a 50-mile race and a 30-mile race, both set against the stunning backdrop of the Mendip Hills in Somerset, England. The 50-miler encompasses the entire Mendip Way, showcasing breathtaking views, diverse lands..

The Ross on Wye 10K Riverbank Run, scheduled for August 31, 2025, is a popular running event featuring a 10K race, a 5K race, and a Fun Run. The course is flat and follows the scenic banks of the River Wye, making it suitable for runners of all levels. Participants can expect chip-timed races, with..

The Joust 12hr & 24hr is an ultra-running event held at Top Barn Campsite, featuring two main challenges: a 24-hour race for solo runners or teams and a 12-hour race aimed at completing 50 miles. The course is approximately 5.5 miles long, set on private farmland, and is well-marked and relatively f..

The RIDUM is an exciting 30-mile ultra marathon set in the scenic hills of South East Wales, specifically along the Rhymney Valley Ridgeway Walk. Participants will tackle a challenging course featuring 4,252 feet of elevation, offering breathtaking views and a diverse terrain that includes lanes, tr..

The RunThrough Snowdonia Sea2Sky event features 53k and 25k trail races set against the stunning backdrop of Snowdonia, taking place on September 6, 2025. Participants can expect a challenging course with breathtaking views, along with a bespoke finisher's medal, chip-timed results, and water statio..

The Battle of the Borders is an exciting trail running event set in the picturesque Shropshire Hills, offering participants the choice of a Half Marathon (13.1 miles) or a full Marathon (26.2 miles). This single-lap course begins and ends at Carding Mill Valley, a National Trust site, providing a st..

The Yr Wyddfa Ultra 50 is an exhilarating ultra-marathon set in the stunning Snowdonia National Park, specifically around the village of Betws-y-Coed. Covering a challenging distance of 45 miles with an elevation gain of 3,254 meters, this event invites experienced runners to navigate rugged mountai..

The Across Wales Walk is a renowned challenge walking event that spans 45 miles across Wales, allowing participants to walk or run the route within 18 hours. Celebrating its 62nd year, the event offers a full weekend experience, including overnight accommodation, transport, refreshments along the ro..

The Yr Wyddfa Ultra 100 is a challenging 102-mile ultramarathon set in the stunning Snowdonia National Park, featuring an elevation gain of 5788 meters. Scheduled for September 6, 2025, the event allows 250 participants to navigate the mountainous terrain, with checkpoints providing essential suppor..

The 2 Hillforts Hill Race is an exciting running event set to take place in 2024, starting and finishing at Plas Dolben Farm in Llangynhafal. Participants will tackle a challenging course that spans just under 9 miles, featuring a significant ascent of 2500 feet as it navigates the scenic Hillforts..

Westonbirt Arboretum Summer 2025 is a running event set in the stunning National Arboretum, featuring a variety of race distances including 1 mile, 5km, 10km, and a half marathon. Participants will enjoy a scenic route through diverse tree species, making it a unique experience that combines the bea..

The Sandstone Trail Races feature a unique trail running experience in Cheshire and North Wales, offering two concurrent point-to-point races. The event starts at Bickerton Hill National Trust Car Park and concludes at Kelsall Hill Equestrian Centre, providing excellent facilities for participants a..

The Blackdown Hills Half Marathon is an exciting trail race set in the scenic Blackdown Hills, starting from the Taunton Racecourse. Participants can choose between a 10K or Half Marathon, both featuring diverse terrain that includes forest trails, muddy paths, and peaceful roads. The Half Marathon..

The Stretton Skyline is a challenging fell running event organized by Telford Athletics Club, taking place in Church Stretton, Shropshire. The race covers a distance of 30.5 km with a total ascent of 1357 meters, making it suitable for experienced runners. Participants must pre-register, and the cou..

The Coln Valley 2, 5, and 10km Charity Trail Run is set to take place on September 7, 2025, organized by the Friends of Hatherop Primary School. This scenic event runs along the picturesque Coln River valley, offering distances suitable for all ages and abilities. Participants can enjoy a fun-filled..

The Snowdonia Mountain Skills Weekend, organized by Running Adventures, is a trail running event set in the stunning Nantlle Valley of Snowdonia National Park. Scheduled for September 12-14, 2025, this weekend is designed for advanced trail runners looking to enhance their mountain skills and experi..

TrailFest - Cannock Chase Forest is a multi-distance running event set in the scenic Cannock Chase Forest, offering participants a choice of 10K, half marathon, marathon, and 50K distances. Designed for all abilities, from seasoned ultra runners to beginners, the event promotes the joy of trail runn..